Yes, true icefish—referring to the specialized family of crocodile icefish native to the cold waters of Antarctica—as well as standard freshwater fish caught through the ice in northern lakes, are entirely edible and consumed globally. Freshwater catches like yellow perch, walleye, whitefish, and trout provide exceptionally flaky, mild-tasting white meat that is prized in winter culinary traditions. Antarctic icefish feature unique translucent flesh lacking hemoglobin, but are safe to eat once properly cooked, though their remote habitat makes them a commercial rarity.